HD6477021X20V Renesas Electronics America, HD6477021X20V Datasheet - Page 359

• Manufacturer Part Number: HD6477021X20V
• Description: MCU 5V 32K PB-FREE 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7020r

Specifications of HD6477021X20V

• Core Processor: SH-1
• Core Size: 32-Bit
• Speed: 20MHz
• Connectivity: EBI/EMI, SCI
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 32
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: OTP
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -

13.1.2
Figure 13.1 shows a block diagram of the SCI.
RENESAS 342
RSR: Receive shift register
RDR: Receive data register
TSR: Transmit shift register
TDR: Transmit data register
RXD
SCK
TXD
Block Diagram
RDR
RSR
Parity check
generation
TDR
TSR
Figure 13.1 SCI Block Diagram
Module data bus
SMR: Serial mode register
SCR: Serial control register
SSR: Serial status register
BRR: Bit rate register
Parity
receive control
Transmit/
SMR
SCR
SSR
External clock
Clock
Baud rate
generator
BRR
SCI
data bus
Internal
/4
/16
/64
TEI
TXI
RXI
ERI